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Cover Figure

COVER This week's issue includes a Review that discusses the importance of the interactions between Eph receptors and their membrane-bound ephrin ligands in normal and oncogenic development. The image shows EphB2 (green) in a complex with ephrin A5 (blue) and is adapted from PDB structure 1shw. [Image: Christopher Bickel, AAAS]

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Science Signaling. ISSN 1937-9145 (online), 1945-0877 (print). Pre-2008: Science's STKE. ISSN 1525-8882